Connecting VAS 5051/VAG1551 Scan Tool
VAS 5051 Vehicle Diagnostic, Testing And Information System Or VAG1551 Scan Tool (ST), Connecting And Selecting Functions
Test requirements
- Battery voltage at least 11 V
- Ground (GND) connections at engine and transmission OK
Procedure
- Connect VAS5051 tester to vehicle with VAS5051/1 diagnostic wire. Alternately, VAG1551 Scan Tool (ST) can be connected using VAG1551/3B adapter.
WARNING:
- For road tests, always secure VAS5051 tester or VAG1551 Scan Tool (ST) to rear seat and have operated from there by a second technician.
- Always observe safety precautions.
NOTE: The following description only explains implementation of On Board Diagnostic using VAG1551 Scan tool.
When using the VAS5051 tester, observe the tester's instructions for use.
Indicated on Display
V.A.G - ON BOARD DIAGNOSTIC HELP
1 - Rapid data transfer 1)
2 - Blink code output 1)
1) Operating modes 1 and 2 are displayed alternately
NOTE: If nothing appears in display:
Depending on desired function Table "Selectable functions"
- Switch ignition on.
or
- Start engine.
- Press PRINT button to turn on Scan Tool (ST) printer. Indicator lamp in button must light up.
- Press button 1 to select "Rapid data transfer" operating mode 1.
Indicated on display:
Rapid data transfer HELP
Select function XX
NOTE: The address word 00 initiates the automatic test sequence, i.e. it results in a DTC check on all OBD capable systems in the vehicle via rapid data transfer.
- Press buttons -0- and -1- to select "engine electronics" and press -Q- button to confirm input.
8N0906018T 1.8l R4/5VT G 0001 ->
Coding 06610 WSC 12345
VAG1551 Scan Tool (ST) display indicates control module identification, e.g.:
NOTE: Control module identification can be printed by pressing the PRINT button of the VAG1551 scan tool.
Control module identification (example)
- 8N0906018T Part number;allocation
- 1.8L Engine displacement
- R4/5VT Inline engine, 4 cylinders / 5 valve turbo
- "G" i.e. no indication Vehicle with or without cruise control system
- 0001 Data version (software version) of control module
- Coding 06610 Control module coding
- WSC 12345 Factory identification of VAG1551, with which the last coding was performed
- Press -> button.
Indicated on display (function selection):
Rapid data transfer HELP
Select function XX
NOTE:
- It will be possible to display the control module identification again after pressing buttons -0- and -1- to select "Check Control Module Versions" and confirming with the -Q- button.
If indicated on display:
Rapid data transfer HELP
Control module does not answer!
- Perform troubleshooting procedure after "troubleshooting procedure leak test".
Rapid data transfer HELP
K-wire not switching to B+
Rapid data transfer HELP
Error in communication link